| 2. | Parabolic antenna in a widely used is tracking antenna area , by use the optimum design , it may produce a very narrow beam , it ' s tracking precision is high , but because it ' s beam width is very narrow , the searching target is very difficult 摘要抛物面天线是火控雷达中普遍使用的一种跟踪天线,通过系统优化设计,可以形成很窄的波束,所以其跟踪精度很高,因为其波束很窄,所以搜索发现目标困难。 |